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Digital Electronics - Digital Arithmetic Operations and Circuits

Exercise : Digital Arithmetic Operations and Circuits - General Questions
26.
One way to make a four-bit adder perform subtraction is by:
inverting the output.
inverting the carry-in.
inverting the B inputs.
grounding the B inputs.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
What is the most important operation in binary-coded decimal (BCD) arithmetic?
addition
subtraction
multiplication
division
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
The range of positive numbers when using an eight-bit two's-complement system is:
0 to 64
0 to 100
0 to 127
0 to 256
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
What are the two types of basic adder circuits?
sum and carry
half-adder and full-adder
asynchronous and synchronous
one- and two's-complement
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The truth table for a full adder is shown below. What are the values of X, Y, and Z?
X = 0, Y = 1, Z = 1
X = 1, Y = 1, Z = 1
X = 1, Y = 0, Z = 1
X = 0, Y = 0, Z = 1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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